Recoil check, etc.



Aug. 5', 1930. L. DUNNING REcoIL CHECK, E'Tc Filed Feb. 13, 1924- 5' She'etsv-Sheet 1" Au 5, 1930. L, DUNNING 1,772,389

REGOIL CHECK ETC Fi led Feb. 13, 1924 s Sheets-Sheet 2 A5 zasvgz'ivrivgdt Aug. 5, 1930. DUNMNG 1,772,389

RECOIL CHECK, ETC

, Filed Feb. 13,.1924 "3 Sheets-Sheet 3' fiwerzZi,"

Patented Aug5,i1930 I TMES VANIA nEooI-LjoHnoK, r

Applieation liled February'13, 1924;- 'Serial no. e92,5s'1.--f

TMyfinvention relates to certain improve-i ments in the mounting and installation a1"- rangement of recoilycheck devlces used for 'controlling the springsxof 'vehiclesijparticularly motor vehicles, The inventionis particularly applicable to recoil check devlces ofthe typeflwherein a flexibletensionmemher extends from one'side of the deviceandis ate-in a substantially vertical plane, thism forward mounting makes necessary the use adapted tobe secured to the vehicle axle The principalobject of th'einventlon is to provide an arrangement and mounting for the recoil check-device which makesgit possible for the flexiblertensionmember or strap to be located'very closeto the side rail'of the vehicle frame whereby the twisting elfect juponthe side rail is reduced .to. a minimum.

Afrirther object of the invention is to provide anarrangement and mounting which is suchthatthe major dimensionof the recoil check device extends transverselythus permitting. the device tobe'mounted on the side rail of the vehicle frame at the most eifec tive position without interfering with tender irons or other parts of the car. Tl'llS makes it possible for thedevice. to be located substantially vvertically above the axle, thus avoiding the use of long-brackets pro ect1ng fromthe axle for the a'ttachmentof the fiex ible member and also avoiding thelocation of thede'vice insuch a position thatthev tension member is at an angle 1 instead of l)8l11'g ver-y rticalw r The invention also relates tov certain de tails of construction which will be described hereafter." r r 1 In'mountingdevmes: of the above men :tiond type, it has heretoforebeen' the custom to mount the device itself with its face or "side parallel. to. or fiatagainst thev side rail of the, vehiclegand with the axis extending transversely. l vThe resultwas thatthe strap or cable connecting it to the axlestood at some little distance fromthe side rail} *The-,-above customary 'form of mounting has a disadvantagein -that,- due to vthe strap orcableibeing at some little distance from -the rail,' it imparts to-the'side raila rather ,he avytwisting action Also due toth e con struction of, certain automobiles, a constructie w erein the st ering drag k isl a tune r, 'LEIGHTQN nUNnins, DETROIT, MIQHIGAKQ AssIGn'on Toaonaiwammw on fCpMPANY,1-OF 'PHILADELPHIA,:IENNSYLYANIA, A oonronA'rron or "PENNSYIivery close to the side of the it necessary in the above mentioned customary type of mounting toplace the device with its.

strap or cablejqu-ite, far forwardfof the axle I in order thatthe'steering draglink maybe moved into its extreme forward positionwith out striking the strap or cable. l

1 In order that the strapor cable may oper of va rather long bracket-arm extending for:

wardlfrom the a'xle to hold the strap or cable. 7 3

Th s arrangementis undesirable as it? is best i that thepull of the strap be as'near as possible to the axle.

where the instrument must be mounted well .forward onthe side rail of the'v'ehicle there is generally found serious interference; with bumper mountings, etc.', and frequently also the turning a radius of the steering wheels must'be reduced to avoid interference :with the device. 7 1 i 5 To overcome all these and other objections tothe customary parallel: mounting offlthese jrecoilecheck's or shock-absorbers,- the present invention, aswill be seen bythe accompany ing drawings, utilizes a mounting which to the side rail with thealxis extending longitudinally, This form of mounting permits the strap or cable to be run very" close to the side rail ofthe vehicle: 'This results in a lessened twisting st-rainvupon the frame and alsoholdsthe strap flatwise to the car spring, which permits of it passing. between the spring of the vehicle and the; steeringdrag link, eventhough those members are located in the longitudinal I direction along the side railand it is; therefore clo'seito a point di rectly over a the can axle and thus out" of the way. of fenderirons, bumpers andiotherpfi holds theface of the device'at'righta angles This form of mounting at once overcomes all of the many disadvantages found in the customary form of mounting and is of great commercial value because, 1n addition to overcoming the above drawbacks of the cuswe i -m mhai msa n the accompanying drawings: Fig. 1 is a. sectional view on the line 17 1,

Fig. 2, illustrating my invention;

a sectionalview'on theline 3'-'3,

s a perspective view of arrecoil oheck, having a=fiat strap and il lustra'ting onle 'form' of attachment by which "it is secured to the f rameofa vehicle; and,

Fig. 5 is a perspective view illustrating a -ree'o'il check using a cable.

Referrin tothe' drawings, 1 :is one'of-the 'siderails'yo a frame-of an automobile. '2 is a 7 front spring longitudinally arranged, which .issecuredt'o the front axle 3 and attached. t

the rail in the'u'su'al manner." 4is the steering drag link and :5 is the knu'ckle arm by which the link is connected to the 'mechaiiism by whicht'heiront wheels are turned on thelimg bolts "6, one of whichf i s shown in the drawings. Thisj' knuckle arm is ofsuch' a length andisso shaped'iii man-y typeset automobiles that itextend's'close to thespr'ing'of the vehiclesothat'any of the present types of recoil checks,'or shock absorbers, if properly installed wi-th the strap or cable held s'trbstan- "tia'lly vertical, interfere with the movement "of the steering mechanism 7 unless placed at a considerable distance in frontof the axle,

latte-rend, an ant; v An 16 en a tn designatesthe steering knuckle',- wliich is mounted on a king bolt "6 and-to which the knuckle arm 5 is attached. 9des'ignatejs the I casing of "a recoil check device which is of th e gtype already referred to. 10 designates the bracket by whieh'the casing is attached to the side'of the side rail 1; This braeket-isamad'e as -sh' own clearly in Fi g. 4

' having a ciampingtfiace substantiallyparal lel withtheaxis er the re ail cheek; Two bolts 11 SeCiirethe'bracket to the easingB and baits measure the bracket to the, side V The design cry-tins bracket depends considerably upon the assign or the vehicle to which "the invent; i's' app 1 1i, and the particular rm 7'1 ch katlev niii ye l I I 9' as ari'o eni g {in i'ts peI'iipli- W3 11 es tate pas ge wi strap 14. I This openingiis at the br ketisjid attire-easing:' The strap -is flat, the present instance, and is "looped t P plate 17 extends through the loop.

n'ism and said side frame.-

clamp plate is attached to the axle as shown clearly in Fig. 2. This clamp, however, may

be modified without departing from the essential features of the invention.

The details ofthe recoil check have not been described, asthey rein-ant part-of'the present invention. The invention can b'e'use din connectionwith any desired recoil check device of the typedescrihedg' k t r vvhile one form of "installation-arrangement is shown embodying my invention, it will .bleiiunderstood that any variety of means g 2 is a o al View o t im may be employed for holdlngthe face of the device" at right anglesfto the side rail, or for holding-the strap fiatwise, to the frame and spring ofthe vehicle without departinglirom the spirit of the invention which has for its mainobject to hold the strap oricableia's near as possibleto the vehicle frame, and in the 1;

case of the strap, tohold the strap flat or'parallelto the spring of the vehicle, ;so that it can passifreely between the spring andthe steering drag link, evenincases where-those two members extend very closeto each other. *I'claima a 1. A reooil controlling;mechanism adapted forattaohmenttothe side frame of a motor vehicle-and including a flexible actuatin memberiadaplted for'attachment toitheaxle-6 I said. vehicle, and means for securing the-said iiie'ehanismtosaid side frame .sothat said flexible 7 member in passing .to'the' gsaid axle extendsdownwardly between the said mecha- Adevice for checking the recoil of a vehicle spring embodying a flexible tension member extending therefrom and adapted to be connec -ted to the vehicle axle, in combination with means for attaching the said idev-i'ce to the side rail of avehicle frame in such position that the side 05? the device from 'whichjthe flexible member extends is facing the side railJ 3; A device for checking the recoil of a vehicle dspr in-g embodying a flexible" flat tension strap extending from one side thneoi and adapted to'be connected to'the vehicle ax1e, 1n' combination with means for attaching the said device to the side rail of "a vehicle ."1

frame-with aforesaid side thereof post tioned fa itrg the rairana with the "plane of the strap'parallel with theiraih the saidside rail of; said vehicle frame being supported at two points by a vehicle spri gmna said at- -taehmen-t to. be tirade feet-ween said points at vehicle 'tf-rzirne';

ta'ched to said e isted sappeiti ngeeie side rai'l a steering I drag link substantially p an aieangs'aa spr iirgjam easi e -i-ai saecoil ascr-armtaryt pe d-to slam-ride.

nis subsetu l;

"vehicle sale; a at- "-ica side rail; and a flexible member extending from the recoil-check and attached-to said axle, said flex'ible member passing between said spring and said steering drag link. I

check of rotary type secured to said side rail "so that the axis of rotation is substantially parallel to the longitudinalli'ne of said side rail; and a flexible member extendingdown to said axle from theside of the recoil-check nearest said side rail. 7 LEIGrHTON DUNNING. 

